Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2006-04-11
2006-04-11
Davis, Brian (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C564S295000
Reexamination Certificate
active
07026512
ABSTRACT:
The present invention relates to novel tertiary alkanolamines useful as catalysts for preparing polyurethane foams and as additives to reduce the dynamic surface tension of aqueous solutions. The tertiary alkanolamines may be represented by formula (I):wherein A, R1–R6, and n are defined herein, and where the tertiary alkanolamine is acid-blocked with a carboxylic acid.
REFERENCES:
patent: 3931430 (1976-01-01), Tada et al.
patent: 4007140 (1977-02-01), Ibbotson
patent: 4012445 (1977-03-01), Priest et al.
patent: 4101470 (1978-07-01), McEntire
patent: 4148762 (1979-04-01), Koch et al.
patent: 4296231 (1981-10-01), Gutekunst et al.
patent: 4311618 (1982-01-01), Schäfer-Burkhard
patent: 4644017 (1987-02-01), Haas et al.
patent: 4650000 (1987-03-01), Andreasson et al.
patent: 4710191 (1987-12-01), Kwiatek et al.
patent: 4735970 (1988-04-01), Sommerfeld et al.
patent: 4797202 (1989-01-01), Klimpel et al.
patent: 5124367 (1992-06-01), Barker et al.
patent: 5143944 (1992-09-01), Savoca et al.
patent: 5194609 (1993-03-01), Savoca et al.
patent: 5200434 (1993-04-01), Bailey, Jr. et al.
patent: 5233039 (1993-08-01), Listemann et al.
patent: 5302303 (1994-04-01), Clatty et al.
patent: 5374486 (1994-12-01), Clatty et al.
patent: 5489618 (1996-02-01), Gerkin
patent: 5508314 (1996-04-01), Listemann et al.
patent: 5559161 (1996-09-01), Klotz et al.
patent: 5633293 (1997-05-01), Van Court Carr et al.
patent: 6437185 (2002-08-01), Walele et al.
patent: 6525107 (2003-02-01), Wendel et al.
patent: 313 159 (1956-03-01), None
patent: 313159 (1956-03-01), None
patent: 450119973 (1970-07-01), None
patent: 52018047 (1977-02-01), None
European Search Report No. 04005139.3-2115 dated Jun. 23, 2004.
Burdeniuc Juan Jesus
Raymond William R.
Yacoub Khalil
Air Products and Chemicals Inc.
Davis Brian
Leach Michael
LandOfFree
Tertiary alkanolamines containing surface active alkyl groups does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tertiary alkanolamines containing surface active alkyl groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tertiary alkanolamines containing surface active alkyl groups will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3619603